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Re: What dielectricis the champion?
Mike, Dan,
Kapton can definately take some heat by it's design. I
believe 3M is the maker of Kapton. At work we use Kapton
tape (transparent amber color) for two purposes
currently; to hold down a grounding brush for a 2100VAC
corrona erase rod which is heated in a brass housing
(takes the heat well - hot enough to burn your finger
after a second or two). We have also used it on a
motherboard which has high voltage tracing. We had a
problem with the trace arcing to the motherboard frame.
Kapton tape become the quick fix temporarily between the
trace and frame - problem gone.
Bart
Tesla List wrote:
>
> Original Poster: Hollmike-at-aol-dot-com
>
> In a message dated 9/26/98 7:44:02 AM Mountain Daylight Time,
tesla-at-pupman-dot-com
> writes:
>
> > so I'm wondering if you Super-slueths know of any exotic super
> > dielectrics both for AC and/or DC i.e. in K-value and HV breakdown
> capacity?
>
> Dan, You obviously know about the virtues of teflon and, unfortunately, the
> cost. I was interested in one type of material that might fit the bill
if it
> is not cost prohibitive as well. It is a polyimide that goes under the
trade
> name Kapton. It seems to have all the right qualities, but have not
tried it
> yet. I have some heating elements at work that seem to be the equivalent of
> circuit board traces sandwiched between two sheets of Kapton, so it can take
> some heat at least. I can't give you any numbers for the dielectric
> properties, but they seemed to be pretty good if I remember.
> One thing to look for anyway.
> Mike Hollingsworth